SaaS, HCM, Dave Duffield and WorkDay! Professional This is going to be a long post, as you would have imagined from the title itself. Well this is all about life, love and software. Today i am going to talk about Life, and Software- As a service. Dave Duffield is […] May 6, 2008 | Leave a Comment on SaaS, HCM, Dave Duffield and WorkDay!